Nipple-holder.



B. STARBUGK. NIPPLE HOLDER. APPLICATION FILED MAY 10,1913.

Patented Jan.12, 1915.

THE NORRIS PETERS Cu. PHoTO-LITHO.. WASHING rmv, u. L.

BROVfNLOl/V STARBUCK, 0F PEORIA, ILLINOI S, ASSIGNOR OF ONE-HALF TO WILLIAM E.

KINSEY, or reams, ILLINOIS.

NIPPLE-HOLDER;

iaaasae.

Application filed May 10, 1913.

To all whom it may concern:

Be it known that I, BRowNLow STARBUGK, citizen of the United States, residing at Peoria, in the county of Peoria and State of Illinois, have invented certain new and useful Improvements in Nipple-Holders; and I do hereby declare that the following is a a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same.

This invention relates or nipple chuck.

The object of the invention is to provide a device that will securely hold a short piece of pipe or nipple which it is desired to furnish with a screw thread by means of the customary appliances for so doing, for instance a die, thread cutting machine, or ordinary lathe, or to otherwise work upon said nipple.

Another object is to provide a device that will securely hold the nipple from turning in either direction, and particularly for holding it from looking in the die when the latter is reversed after having cut the thread.

Another object is to provide a device that will absolutely hold a nipple from turning in either direction during the time the thread is being cut and at the same time will quickly release the nipple.

Still another object is to furnish a nipple holder of a very simple construction that while adapted to firmly hold a nipple while cutting a thread, at the same time will quickly release said nipple without danger to its threads orto any part of the holder.

In the accompanying drawing illustrating the invention, Figure 1 is a side elevation of the main portion of the holder. Fig. 2 is a longitudinal section of a sleeve to engage the same. Fig. 3 shows a holder completely assembled and a nipple held therein. Fig. 4 is a transverse section of the main portion of the holder on line a a, Fig. 3, as seen in the direction of the dart, and Fig. 5 shows a disk in perspective.

Before entering upon a detailed description of my nipple-holder I wish to state that to a nipple holder Specification of Letters Yatent.

Patented J an. 12, 1%15. Serial No. 768,885.

I am aware of nipple holders of various types some of which have in view, as in the present instance, the desire to form an abso lute chuck for the nipple for preventing the same turning while being operated upon. But these, in most cases, require somewhat complicated structures which do not permit the nipple to be readily removed from the holder without damage to both the nipple and the holder. Other devices of which I am aware require parts that easily become lost and for that reason are very unsatisfac tory and in view of the trouble experienced in properly holding the nipple while receiving its thread, and of the diiiiculty in releasing said nipple in the forms of holders now in use, I have devised an improved nipple holder now to be described which has the advantage of firmly holding the nipple from turning in either direction ad permitting the nipple to be instantly released; there being no keys or extra parts to become detached and lost.

In the drawing, A represents the main portion of my holder which consists of a stem to be inserted into a lathe chuck or other holding means, not shown, and having cut at one end a heavy square thread B and including near the base of said thread a stop C clearly shown in Figs. 1, 3 and 4:.

D is a sleeve provided interiorly with a square thread E corresponding to the thread B of the stem A and adapted to engage the same as shown in Fig. 3. The thread E ends abruptly at F within the sleet at its outer end, see Figs. 2 and i, being adapted to meet the stop C, the latter in use preventing turning of the stem and sleeve further upon one another after being screwed home. The opposite end of the sleeve D is provided interiorly with screw threads G of the ordinary pointed type or that form of thread corresponding in form and pitch to the standard threads of the nipple H or other member being threaded.

J is a disk having a position, in use, within the sleeve D and adapted to rest upon the end of the stem A to receive the pressure of the end of the nipple H. In practice the sleeve is screwed upon the stem vere strain that can be A as far as it will go, the terminal F of the thread E bearing against the pin 0. The nipple is then screwed into place in' the sleeve against the disk J the relative position being clearly illustrated in Fig.3. 1 All operations upon the nipple H may now be performed, the threads of the nipple firmly chucking into the threads of the sleeve due to the strain applied by the threading or other tool, and the limiting of movement endwise by the disk J.

As distingulshed from those types of nipple holders of which I am aware, my device as shown and described in which the sleeve is really a union-for the nippleand stem A includes a part provide'd both with standard pointed thread and with a second dissimilar thread preferably the square thread E described. The advantage of this structure is that while the standard thread is necessary'for the nipple, a heavy or much coarser and preferably a squarejthread used to engage the stem cannotbecome jammed or crossed with the thread a turn suiiicient to properlylockthe threads of the nipple and threads G would not be suiiicient to cause the coarser threads tolock, particularly if of a square 1 form as B. In the square form with a straight side which lies perpendicular to the axis of the stem and sleeve it is practically impossible for .the sleeve and the stem to'become locked even to the slightest extent when making use of the pin C or otherequivalentform of stop on the stem with which the end of the thread E is caused to engage.

In practice, the nipple under the most seplaced upon it, which causes it to seat so tightly in the sleeve asto require special means to releaseit, can be very readily moved by a. simple hand'grasp "site ends with the to turn thesleeve and the stem-relatively. By reason of the fact that the-dissimilar larger threads 13,15, particularly if square do'not become locked into one another in the manner that the standard threads of the sleeve do, admits of the sleeve being turned relatively to the stem withno effort whatever. vVhen the pressure of the disk J upon the nipple is removed, therefore,'the latter can be vvery easily removed.

Where a member is furnished at opposame kind of threadfor receiving two members abutting ,upon one another, both the latter become so firmly wedged or looked as to'require the special tools mentioned. "The dissimilar threads, however, one a square thread,'inconjunction withastop such as' C, and preferably employing the disk J, absolutely prevents the locking or wedging. The'stop' Gextends laterally from the stem so as toabut upon the end of the thread at F so that there can of the stem since form of thread, threads corresponding to the ,last named be no possible chance for the two parts A and D becoming looked as might result were 'the part D permitted to abut upon a shoulder ofA such as that adjacent the'said stop struction of my nipple-holder such as would lie within the meaning and the 1 invention and its claims.

Having described my invention, I claim 1. A nipple holder comprising asleeve threaded internally at one end to receive the part .to be machined-and provided at its other end with athread of dissimilar form, a 'member provi'ded with '.a thread corresponding to and adapted to engage the latter thread, a laterally extending stop on the member and the sleeve lying inthe path of rotation of one another to limit the rotation of the said sleeve and member. relatively.

2. A nipple holder including a sleeve threaded interiorly atone end to receive'the work to be handled and provided. at its end with a thread of a different pitch, agmember correspondingly threaded to engage the lastnamedthread, a stop projecting from one of thesurfaces of the member, and a stop on the sleeve, one of said stops adapted to move into the path of the other in the rotation of the parts relatively.

3. A nipple holder including. a sleeve threaded to receive the work to betreate'd, a member havingthreaded engagement with the sleeve, a stop on-the member, and a stop von the sleeveadaptedtobe moved into' the path of'and to engage one another in the rotation of the parts relatively.

4. A nipple holder consisting of a sleeve 'interiorly'threaded atone end and. adapted to receive a nipple at larly to its axis ofrotation andlying. in the ath'of and adaptedto'nieet ,a portion of one ofthe other-parts in the rotation'iof the parts relatively, the-meeting surfaces of the parts lying substantially parallel to-the axis of rotation.

5.- A nipple holder comprising a sleeve threaded'interiorly at one end and adapted to, receive a nipple at that end and:provided interiorly at its other ;en'd"with a dissimilar a member provided with threads and adapted to engage the same, a stop carried by andextending from one" of the parts perpendicular to the axis of'itsro tation and lying in the path oft-a portion of In testimony whereof I affix my signa thedother part, the sugfaces oflthe stolp and ture, in presence of two witnesses.

sai ortion in $11 stantia ara lel t0 the a is of rot ti l of the partsfa d a mem- BROWNLOW bTARBUCK' ber separate from the sleeve and the first Witnesses:

said member and adapted to lie upon the L. M. THURLOW,

end of the latter. I JOHN B. HAMMATT.

copies of this patent may be obtained for five cents each, by addressing the "Commissioner of I'atents,

Washington, D. 0. 

